Kidneys

Question 1

Answer 1

Renal corpuscle

Top = parietal epithelium, bowman’s space, podocyte (visceral epi) and capillary

Middle = mesangial cells in mesanglial matrix

Bottom = endothelial cells

Question 2

Answer 2

top = parietal epithelium then bowman’s space

next cells - podocytes (visceral epithelium) and capillary

Question 3

Answer 3

mesangial cell in mesangial matrix

Question 4

Answer 4

top line = endothelial cell

bottom line = capillary

Question 5

Answer 5

podocytes on surface of glomellular capillaries

Question 6

Answer 6

glomerulus with interconnected capillaries on top

Question 7

Answer 7

podocyte cell body showing primary and secondary foot processes

Question 8

Answer 8

Podocytes

white is bowman’s space

Glomeullar capillaries

Question 9

Answer 9

1= bowman’s space

2 = fenestrated cap

Question 10

Answer 10

filtration barrier

comprised of

Question 11

Answer 11

mesangial cells and mesangial matrix

Question 12

Answer 12

mesangial cells and mesangial matrix plastic embedded

Question 13

Answer 13

1 = proximal convoluted

2 = distal convoluted

Question 14

Answer 14

more red = PCT

less red = DCT

think about why it is staining red with acid phosphatase!! lysosomes!!!

Question 15

Answer 15

endocytic vessicles

Question 16

Answer 16

proximal convoluted tubule

THINK: microvilli, endocytic vessicles, lysosomes, mitochondria, lateral PM interdigitation, basal PM infoldings

Question 17

Answer 17

infoldings of basal plasma membranes containing mitochondia = typical of ion transport membranes

*contain NA KTPase pump

Question 18

Answer 18

typical ion transporting scheme

lateral PM interdigitation with indistinct cell borders

Basal PM infldings contain mitochondria with sodium pumps

Question 19

Answer 19

distal convoluted tubule

NOTE: no brush border, sparse microvilli, nucleus at upper portion of cell, basal plasma membrane infoldings, mitochondria

Question 20

Answer 20

limbs of loop of henle and vasa recta

Question 21

Answer 21

loop of henle

NOTE: simple squamous epithelial cells, no brush borders, few organelles, no basolateral interdigitation

*arrow = nearby vasa recta

Question 22

Answer 22

collecting ducts

NOTE: pale staining cells that go cuboidal to columnar, lack brush border and have distinct cell border

Question 23

Answer 23

macula densa

Question 24

Answer 24

L arrow = macula densa

R arrow = extra golmerular mesangial cells

Question 25

Answer 25

arrows pointing to JG cells containing granules

*secreted into circulation in response to decreased sodium concentration in tubular fluid (promoted by signaling from macula densa)

Question 26

Answer 26

outer wall of bladder has three layers of smooth muscle